Patrick m



P. M. SCANLAN.

PUMP.

APPLICATION FILED MAR. 8. I9I8- 1 ,3 1 4,707 Patented Sept. 2, 1919.

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be anzjwm Patrick M 562721012 sen, his Mocmqs UNITED STATES PATENT ()FFIUE.

PATRICK M. SCANLAN/OF BROOKLYN, NEW YORK.

PUMP.

- which it appertains to make and use the same. 7 a

. This invention relates to pumps and more partlcularly to what are known as air pumps or devlces of this class deslgned for use 1n inflating pneumatic tires, and the object thereof is to provide an air pump which is simple in construction, effective in operation and which may be more conveniently and easi ly operated than other devices of this class, and with the exertion of a minimum of effort or power; a further object being to provide animproved air pump which may, intadditiontobeing operated for the purpose specified, be also used for the purpose of pumping .or compressing ,air in most of the relations or for most of the purposes for which such devices are usually employed; and with these and other, objects in view the invention consists in an air pump constructed and. operated. as hereinafter claimed.

, The invention described and claimed herein is an improvement on thatdescribed and claimed in a prior application filed by me January 24, 1918, Serial No. 213,511, and which is "fully disclosed in the-following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable, reference characters in each ofthe views, and in which A Figurela side v1ew of my improved pump showing the same in its folded position; m

- Fig. 2 a view. at right angles to that shown l 1 in Fig. land showing the pump in position for use orwith the folded parts thereof extended; i

Fig. 3 a partial section on the line 33 of a Fig. 2 andon an enlarged scale;

Fig. 4 a plan view of a handle member which I employ;

Fig. 5 a section on the line 5 5 of Fig, 3 and, Fig. 6 an enlarged detail sectlonal v1ew of a valve device shown in Fig. 3.

Specification of Letters Patent.

Application filed March 8, 1918 Serial No. 221,126.

'In the practice of my invention, I provide a base a which is approximately rectangw 1211' in form and comprises a top member a and opposite depending sides a Secured centrally of the base a and between the sides a thereof is a block I; provided with a longitudinal bore 6 the open end of which is closed by a plug D ,The block b is held in place by a tubular pistonrod c, the lower end of which is reduced and threaded into said block as clearly shown at c in Fig. 3, and placed between the block b and base a is a packing sheet I) which seals the connection of the piston rod 0 with the block b, as

Connected with the upper end of the pis-' ton rod 0 is a piston d of the form and construction shown in the application above referred to, and which is mounted on a reduced end c? of therod' c and held in such position by a tubular lock nut (1 and mounted in the reduced end c of the rod 0 is a valve mechanism d of any desired form and construction and which may be similar to that shown in said prior application and adapted to control the intake and exhaust of air through a port or passage 0* in the piston rod 0 inwardly of the piston cl as clearlyshown in Fig. 3.

The detail construction of the valve mechanism d is shown in Fig. 6 of the drawin and consists of a flexible sleeve d ada'pte to normally close the port or passage ci. Placed within the sleeve 'd* is a valve casing (l within which is a tensionally operated valved adapted to control the passage of air into the tubular rod 0 and through a sleeve plug 03' secured in the lock nut 01*.

The piston (Z is movable longitudinally through a cylinder e closed at its upper and lower ends by caps e and e between which and the ends of the cylinder 6 are placed two fibrous disks. e.and e". The disk 6 is cut out as shown at e? in line with, or adja: cent to an aperture e in each of the caps e and 0 while thediskse are out outlas shown at e in Fig. 5 to form tongue or valve members e which are movable through the aperturese in the disk 0" and adapted to open and close the apertures, e in the capse and e, andthis construction end ofthe f rameyand :the sides of the frame" 7 are provided betweenthe center thereoff 1O of the'caps' e and e? is clearly shown in 3 and '5 of the drawing. I

The cylinder (2 is inclosed in an-oblong frame member f which is UvShapedin forljo' or provided with an integral head member f and the opposite end of which is closed:

by a transverse plate f secured to the open and the upper end of said "frame'w'ith'oppositely arranged, elongated apertures f five of whic'h are shown in Fig. 2. "{The'top of the. frame f is provided with a depressed 3 portion f which is adapted to-entera simiportion of t'he capfe' as clearly shownfin lardepressed portion 6 inthe'c-entral top 3,.and this construction serves to. cen

ter the cylinder 'ew-ithin' the frame. f and hold :the cap end e fthereofl againstdisplacement in said frame as will :be readilyunderstoOd I P The lower end of the cylinder 6 is co n neoted with the platef? at the bottom of the framefby a sleeve gadjustablymountedin the plate f and provided at its outer end with a nut-shaped head g9, and the inner end of said sleevefisadaptec'hto bear on the face of the cap 6 as clearly shown in Fig. '3, and"a'supplemental innerslee've h is threadedinto the inner yend of the sleeve .9 and is provided with a: shoulder, h? adapted to bear on the disks eand 6. 1110 seal the co'nn ec tion offlthe cylinder, or the cap e there of, at this point, I and said supplemental sleeve rhislprovided with an enlarged nutshaped head. it? on theinnerend thereof whereby the same may be manipulated.

Another supplemental sleeve iis adliustably mounted in .the outer end of the sleeve 9 and is adapted -.to operate in connection with a packing 2' placed the sleeve g be- I tween thesupplementalsleeves hand i and .-serves to ,hold said packing infirm position to seal the connectio1ro.f,.the piston rod 1'0 with the ylinder e inthe, operationlof said] cylinder, as hereinafter described N A. .co-upling plug is -com ected with the top a of .the base at at onewside xthereofjand the .end j? thereof communicates with the "bore 63in the block'b, as clearlyv shown in Fig. 3, while a flexible hose j 1s connected with the projecting end I of said ,eouplin-g,

and in Figs. .1 and 2,1.haveshownoppositely 3 arranged foot pieces which: are yoke- I shaped in .form .as clearly indicated 'ilrFi'g. v1, and are pivoted 'tothe opposite sides 504 of the base a as shown at rkvinwardly of. said side, and thesefootw pieces are adapted to normally swing .into the position shown in full lines in Fig. land into-the position indicatedin dotted lines in Fig, 2,.-but maybe lowered into the position shown. in lfu'l-l lines in Fig. 2 when in use, andthe feet of the operato r are placed thereon in the operation of the'pump ashereinafter described.

I also employ; a handle inenrber mgcomposed of twofhand pieces m and wa connected-by opposite frame members m pro-- --videdwith inwardlydirected members m, having reduced endsm. The reduced ends m? of the inwardly directed members m are adapted to operate in connection with the aperturesy inthe sides of theframe f as clearly indicated in Figs. 2 and 3, and in "order to hold the handle member m, in posi-.

tion against displacement I employ lock members n pivoted to: thefsfide members of'the frame f, asshown'at W, "and coinprisind jinner' rectangular U-shaped "bodies n which are adaptedto operate in connec tion withith e' opposite side'walls'o-f thejcyl The lock members on their pivots at n? to permit theattach-j ment and detachment o-fjthe "handle mem? ber. From the foregoing description .th'efoperation of my improved pump will be readily understood when taken in; connection with the accompanyingdrawing and the follow ing statement. The position ofthe pump as 7 shown in Fig. l is the fo'lcle lJP t t of, "the handlefmember m g Idetwhed" and when it is desired to use the pump the lock members at are firstmoved-outwardly out of engagement withthe fside's f the frame f and the" foot pieces "7c are swung downwardly into the position shown in full lines inFig. 2, after which the *handle mem berm is placed in any of the oppositely ranged apertures f and locked .in such'positionby'irroving the lock membersn back into the positionshown in Figs. 1 and 2 to spring the sides of the frame f outwardly, and in manipulating thepumpthe feet of the ope-r aztor are placed on the foot pieces k andthe' handle member m grasped by the hands of the operator and the cylinder 6 isfirst raised from the position shown 'in'the drawing on I thepiston rod cand piston d "in-'vvhieh op eration the air in the eylinder e is forced outth-ro'us'rh' -the aperture of through the tubul'ar piston rod c,the*bore b in the block."

I), through the coupling j and out through the .iie' xi'b'le, tube fi and in this operation air is aJsoadm-itted'into thejcy'lindere above the pi's'toird through the port or passages? "in the top cape? controlled bythe tongue orvalve e". In'the' downward movement of the ,cylinder,e'overthe piston "rod oand piston d, the air previously admitted into the cylinder through the port 36 in the cap '6 is discharged from said cylinder through thevalv'e device; (Z in the end bf the; piston rod 0 through said rod, the' bore Y-Fjin the Y r, f

. shown in said prior by loosening the sleeve with the top f of the handpieces block b, the coupling j and out through the flexible tube and in this operation air is also admitted into the cylinder 0 below the piston (Z through the port a in the cap 0 as will be readily understood.

The connection of the separate parts of my improved'pump will be similar to the connection of the separate parts of the pump as application, the piston rod 0 being connected with the base a and block I) mounted therein, the piston 1) connected with the upper end of said rod and the valve mechanism cl mounted in said end of the piston rod, it being understood that the frame 7 with the sleeve 9 and supplemental sleeves h and i arev mounted on the rod 0 with the cap 6- secured in place between the sleeve 9 and supplemental sleeve h.

a The cylinder 6 is then passed over the piston (l when the cap e is drawn in position adjacent to said piston and the cap a is placed on the upper end of the cylinder 6, and said cylinder swung into vertical alinement with and within the frame f, after which the sleeve 9 15 adjusted into the position shown in the drawing to move the cylinder 0 vertically to lock it in engagement with the top 7 of the frame or to bring the depressed portions f and 0 together, and in this posi tion of the parts the cylinder 6 is held in firm connection with the frame 7, as will be readily understood. The detachment of the cylinder 6 for cleaning or repairing the separate parts of the pump will be accomplished g to bring the cap end 6 of the cylinder 6 out of engagement frame, and said cylinbe removed from the piston rod and piston as will be readily understood.

The connection of the handle member m with the frame f is an adjustable one by reason of the apertures f, and in this way the position of said handle member may be regulated to suitt-he operator and it will be noted that the operator in grasping the m and m of the handle member on will be able to operate the cylinder e over the piston or piston rod with more power and with'his arms in a more position than will pump devices of similar class employing the usual transverse handle on the end of the piston rod, in other words, in the operation of my pump the arms of the operator are in their normal position and not in a twisted position as with pumps of the present construction, and by folding the foot pieces is into position longitudinally of the frame f and cylinder 0, and by detachably connecting the handle member m, my improved pump may be compactly wrapped for shipment or other purposes, and will not take up an unnecessary amount of room; but it will be understood that various changes in and modifications of the details of construction herein shown and described may be der may then comfortable made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A device of the class described, comprising a base, a piston rod connected with said base, a piston connected with said piston rod, a c linder mounted on said piston and piston rot and movable longitudinally thereof, a frame inclosing said cylinder and in which said cylinder is detachably mounted, and means connected with said frame for moving said cylinder longitudinally of said piston and piston rod.

2. A device of the class described, comprising a base, a piston rod connected with said base, a piston connected with said piston rod, a cylinder mounted on said piston and piston rod and movable longitudinally thereof, a frame inclosing said cylinder and in which said cylinder is detachably mounted, and a handle member adjustably connected with said frame and adapted to operate said cylinder.

3. A device of the class described, comprising a base, a piston rod connected with said 'base, a piston connected with said piston rod, a cylinder mounted on said piston and piston rod and movable longitudinally thereof, a frame inclosing said cylinder and in which said cylinder is detachably mounted,'means for locking said cylinder against movement in said frame, means connected with said frame for moving said cylinder longitudinally of said piston and piston rod, and means for admitting air into said cylinder and discharging it from said cylinder through said piston rod and said base.

l. Adevice of the class described, comprising a base, a piston rod connected with said base, a piston connected with said piston rod, a cylinder mounted on said piston and piston rod and movable longitudinally thereof, a frame inclosing said cylinder and in which said cylinder is detachably mounted, means for locking said cylinder against movement in said frame, means connected with said frame for moving said cylinder longitudinally oil. said piston and piston rod, means at each end of the cylinder for admitting air thereinto in,the movement of said cylinder on said piston and piston rod, and means for discharging air from said cylinder through said piston rod and said base.

5. A device of the class described, comprising a base, a piston rod connected with said base, a piston connected with said piston rod, a cylinder mounted on said piston and piston rod and movable longitudinally thereof, a frame inclosing said cylinder and in which said cylinder is detachably mounted, means for locking said cylinder against ama-o7.

movement in said frame, means connected With said frame for moving said cylinder longitudinally of said piston and piston rod,the opposite ends of said cylinder being provided With intake ports or passage controlled 'by a valve device and the piston endof the piston rod being provided with exhaust ports or passages controlled by a valve mechanism mounted in said piston rod whereby the air admitted into the-cylinder through the intake ports or passages in the opposite ends thereof may be discharged" through the exhaust ports or passages, in

the piston rod and through thebase With munication with said piston-rod through a port or passage 1n said base, a piston, connected With said piston rod, a cylinder mounted on said piston and piston rod and movable longitudinally thereof, said cylin-.. der being provided With end caps adapted to close the same, a frame inclosi-ng said cylinder, means for locking one end of the cylinder against lateral movement in said frame, and means at the other end of said cylinder for moving the same longitudi-;

na'lly of said frame andlocking it therein against transverse and lateral movement,

and a handle member adjustably connected with said frame and adapted to operate said cylinder on saidpistonandpiston rod.

7. Avdevice of the class described, c0m-- prising a base, a tubular piston rod connect-x ed With said base, a flexible tube coupling connected With said base and placed incommunication withisaid piston rod: through a port or passage in said base, a piston connected With said piston rod, a cylinder mounted on said piston and piston rod and movable longitudinally thereof, said cylindcr being provided With end caps adapted to close the same, a frame inclosing said cylinder, means for locking one end of the cylinder against lateral movement. in said frame, and means. at the other end of sald cylinder for .moving the samelongitudi nally of said frameand looking it therein against transverse and} lateral movement,

and the oppositesides ofsaid frame being providedswith a plurality of oppositely arranged apertures, a, handle men'rber adapted to be mounted in; said apertures and means connected With said side frame members for" holding the same in firm connection With sa d, handle memben 81 In a, device ofithecl'ass described, av base, .foot'pieces mo'vably connectedwith s said base, av pump mechanism connected, With said baseand involving aframe, a cylinder detachablymounted in said frame, a

piston mounted in said cylinder and a tubu-:

lar piston rod connectedvvith said; piston and passing out through one end of Q the cyl nder and connected. with said base,

means connected With said frame for mov ing the -'cylinder longitudinally of said piston and piston rod, and valve devices in said cyllnder and said plston rod for admittlng air into said cylinder anddischargingit therefromr through said tubular piston rod and through said base,

9. In a pump idevice of the class described, the combination with a pumpcylinder mounted on. and movable I longitudie nally of'a piston and piston rod, ofa frame in Which-saidcylin'der is detachablymounted and; said frame being provided With means whereby said cylinder .may be; moved 1 longitudinally of said pistonand piston rod.

In testimony that I claim the foregoing asmy invention I- have signedrmy name in presence of the subscribing Witnesses this 6th day ofMarch, 1918.

I PATRICK SCANLAN. iwitnessesiv i I b )OQE. MULREANY, I H. ENTHOMISON.

Copies of this patent may be obtainedifonfive cents each, by adtlre ssiingpth e Coniii1issioner of Patents,"

' I Washington, IL G. 

